Treeing jack



J. D. KRIVE Dec. l5, 1931.

TREEING JACK Filed Oct. 21, 1929 2 Sheets-Sheet ,26e afa 1-32271973 vDec. 15, 1931. J, D, KRlVE 1,836,717

TREEING JACK .Filed Oct. 21, 1929 2 Sheets-Sheet 2 l fg Patented Dec.15, 1931 '7 l UNITED STATES PATENT OFFICE JAMES D. KRIVE, F ST. LOUIS,MISSOURI, ASSIGNOR TO INTERNATIONAL SHOE COMPANY, 0F ST. LOUIS,MISSOURI, A CORPORATION OF DELAWARE TREEING JACK Application led October21, 1929. Serial No. 401,056.

This invention relates to treeing jacks kfor of the machine equippedwith the devices for shoes; and an object of the invention is toexpanding and smoothing the high uppers provide an improved machine foruse in of shoes.

inishing shoes while the original last re- Fig. 7 is a sideelevatiomslightly enlarged mains in the shoes during the iinishingopeiwith respect to Fig. 6, showing the devices 55 ations, in theposition they occupy when expanding Another object of the invention istoproa high upper oi a shoe. vide a machine of the character mentionedFig. 8 is a side elevation similar to Fig. 7 having a member constructedand arranged Showing the saine devices with one of the exto engagewithin a socket in the shoe last panding members removed. 60 while theshoe remains on the last and to F ig. 9 is a longitudinal sectional viewof support the shoe in a relationship in which the expanding members andtheir associated the shoe may be turned about the axis of said parts.member and finished. Fig. 10 is a cross sectional view approxi- Anotherobject of the invention is to promately on the line 10-10 of F ig.f8. e5vide a machine of the character mentioned Fig. 11 isl a lateral sideelevation of the having means for adapting the machine. for IIlOV'a yleexpanding member. use in supporting shoes having low uppers F 1g. 12 isan inner side elevation of the or for supporting shoes having highuppers, Same movable expanding member.

as desired. For supporting high uppers the The'embodinients of themachine shown 7o' machine is equipped with means for expandcomprise abase 1 having rigid therewith a ing and smoothing the upper in propercon- Vertical tubular standard 2 which has a verdition for finishingOperations, tical split 3 at its upper end so as to permit Anotherobject of the invention is to prothe upper end of the standard to beexpandz5 vide an improved treeing jack capable of ed and contracted. 75'the advantageous uses and applications here- A frame member is mountedon the upper in disclosed, reference being made to the ac-V end of thestandard 2 and comprises a tubular Conipanying drawings in which bOdy 4:lIl llgld COHHSCOD Wlth 3. laterally Fig. 1 is a side elevation ofiny'improved extended arm 5. The arm 5 is designed and machine adaptedto support a shoe having a adapted 60 he inserted in and Withdrawn solow upper, parts being in section. from the upper end of the standard 2.The

Fig. 2 is a vertical longitudinal sectional Standard 2 at oneside of thesplit 3 is formed view of the upper end portion of the ina- Wltha boss 6Fig. 1) andthe opposite side chine, showing the arrangement of the deofsaid split 3 is formed with a boss 7 (Fig.

e5 vices that are operated to obtain gripping 6). The boss 6 hastherethrough ahole have5 engagement in the socket of a shoe last. mg 2LSmOOth Wall and the boss 7 has Fig. 3 is a cross sectional view on theline therethrough a hole having a threaded 3 3 of Fig. 2, showing thedevice for rotawall. These bosses support a clamping detively securingthe support for the shoe last VlCe WhlCh 1S Operative to Contract and 4oin connection withl the upper end of the clamp the upper end of thestandard 2 9o frame. about and against the arm 5 so as to hold Fig. 4 isa detailed view showing the gripsaid arm 5 and thereby the tubular body4 in ping device that engages in. and grips thel rigid relationship tothe standard 2. And, Wall of the socket of the shoe last to support theclamp device may be operated to permit 4.5Y the same. Y

Fig. 5 isan outer end elevation of the deoriginal position to permitinsertion or withvice that operates to obtain gripping engage` drawal ofthe arm 5 from the upper end of ment with the wall of the socket of theshoe the standard. The clamping device comlast. prises a stem 8journaled in the smooth hole the Lipper end of the standard to spread toits w" Fig. 6 is a side elevationof the upperend in the boss 6 andscrewed into the threaded 139 hole in the boss 7. The stem 8 has rigidtherewith adjacent to the boss 6 a head and arm 9 which abuts againstthe outer surface of the boss G so that when the stem 8 is turned byoperation of the arm 9, said stem will operate to contract the upper endof the standard 2 or permit the standard to expand, depending upon thedirection in which the stem 8 is turned. for turning the stem 8 forthese purposes.

mounted therein a member comprising a part of the mechanism whereby thelasted shoe'is supported for finishing operations. This member includesa solid cylindrical portion l rotative within the forward end of thetubular body 1 and having an abutment shoulder l1 arranged to bearagainst the for: ward end of said body 4 to limit extent of movement ofthis supporting member intO said body 4. Forwardly beyond the shoulder11, this member is formed with a socket l2 designed and adapted toreceive another machine part. And the socket 12 has mount.-

ed in the wall thereof a set screw 13 operative to clamp against and torelease the machine part that is engaged in the socket. The part of thismember is formed with a. cireumferential groove 14 for engagement by thedevice for rotatively securing the support for the shoe last inconnection withthe upper end of the frame. This device comprises amember 15 having one end mounted on a pivot l in a slot 17 formed yinthe tubular body 4. The opposite end of the member l5 is provided with aprojecting handle portion 18 for manual engagement to move said member15 from and into the slot 17. The groove 14 is radially opposite theslot 17y and lwhen the member 15 is in effective position (Figs. 2 and 3it engages in the groove 1,4, thereby preventing withdrawal of therotary shoe support from the tubular frame body 4, while permittingrotation of the shoe support. A shaft 19 extends axially through thebody 10. The body 10 is rigidly secured to the shaft 19 by removable setscrews 20 which are screwed into holes in the body 10 and have theirinner ends abutting` and clamping against the shaft 19, thereby toprevent said shaft 19 from turning with respect to the body 10.

The shaft 19 is formed, ,along one side thereof, with a longitudinalgroove or slot 21. This slot 21 is parallel .with the axis of the shaft19. A gripper member, comprisingy an appropriately shaped bar 22, ismounted for longitudinal sliding movements in the groove or slot 21.This gripper inem,-

ber extends through the body 10 Whichdoes not in the least interferewith the longit-udinal sliding movements of said gripper member. Theinner end ofthe gripper member is formed with a portion'23 that extendsradially beyond the surface of the shaftvl9 The arm 9 constitutes ahandle and is also formed with a radially extended arm 24 (Fig. 2). Anabutment washer 25 is mounted on the inner end of the shaft 19 and isappropriately recessed so as to be engaged by the parts 23 and 24 of thegripper member 22. Accordingly, the abutmenty Washer 25 can movelongitudinally with the gripper member 22, but cannot turn about theaxis of the shaft 19 with respect to" said gripper member. The abutmentThe forward end of the tubular body 4 has vwasher 25 has, on the sidethereof that is toward the body 10, an extended hub portion 26 which isencircled by one end of a spring 27 that bears against the abutmentwasher 25, while the opposite end of the spring 27 bears against theinner end of the body 10 and is enclosed by a tubular part 28 rigid withand extending from the body 10. Thus, the hub 26 acts to preventdistortion of that portion of the spring 27 which encircles said hub,and the tubular part 28 acts to prevent vdistortion of that portion ofsaid spring which is enclosed thereby. The abutment washer 25 is spacedfrom the end of the tubular part 28 so that said washer is capable ofmovement toward said'part 28 from the position in vwhich said washer 25is yieldingly held by said spring 27.

It is now clear that the body 10 is incapable of longitudinal' movementsbut is capa ble ofl turning movements in the tubular supporting body 4;and that the shaft 19 is rigid with vthe body 10, while the bar 22 iscapable of longitudinal movements outwardly from and inwardly to itsstarting position, which is its effective or gripping position.

A washer 29 (Fig. 2) seats against the outer end of the washer 25 in thegripping position of the slide 22 and abuts against a nut 30 screwed onthe threaded end of the shaft 19. A sleeve 31 is mounted for slidingmovements in the tubular supporting body 4 and has one end abuttingagainst the washer 29 and enclosing the nut 30.v y The opposite end ofthe sleeve 31 has screwed therein a removable abutment bearing 32. Thispart 32 is' removable and replaceable and is 'also capable o'fadjustment. So, too, the sleeve 31` may be withdrawn fromr the tubularsupport-4 without disturbing or removing the remaining elements that aremounted in said support. The end of the tubular support 4, as shown, is'closed by a removable plate 33 secured in place by screws 34.

A bell crank lever is provided to operate the longitudinally movable bar22. This bell crank lever is mounted on a pivot 35 rand has one arm 36projecting into the tubular body` 4 and bearing aga-inst the outer endof the abutment 32. The other arm 37 of said bell crank Vlever haspivoted thereto a depending link 38. A coupling 39 is fastened on thelink 38 by a clamping set screw 40. The upper end of a link 41 isclamped in` the coupling 39 by a clamping set screw 42.

The lower end of the link 41 is pivoted to an arm 43 rigid on a rockshaft 44 which is supported in a bearing 45 on the base 1 of themachine. A lever 46 has one end attached to the rock shaft 44 and hasits other end soV equipped with a foot pedal 47,'thus providing atreadle for turning the shaft 44 in one direction. A spring 48 isarranged in connection with the shaft 44 so as to raise the treadlelever 46 after said lever has been depressed by the foot of the operatorof the machine. Thus, I have illustrated an embodiment of means wherebythe bell crank arm 36 (Fig. 2) may be operated to move the sliding bar22 outwardly toward the end of the shaft 19. And, when the treadle isreleased, the spring27 acts to move the sliding bar 22 inwardly in adirection away from the outer end of the shaft 19.

The outer end portion 49 of the longitudinally movable bar 22 has aninclined inner wall 50 which operates against a similarly inclined wall51 which is the bot-tom wall of the slot 21. These ywalls 50 and 51constitute cams whereby the end portion 49 of the bar 22 is movedoutwardly and radially automatically and as an incident to inwardmovement of said bar 22' by the spring 27. That is to say, when the bar22 is moved outwardly by operation of the bell crank lever 36-37 inopposition to the spring 27, the cams 50 and 51 permit radial inwardmovement of the e-nd portion 49 of the bar 22. And when the spring 27acts to move the bar 22 inwardly to its effective or gripping position,the cams '50 and 51 move the end portion 49 of the bar 22 radiallyoutward to gripping position (Fig. 4).

A tapered sleeve 52 constitutes a housing for enclosing the greaterportion of the shaft 19 and the bar 22. This sleeve 52 has its inner endengaged in the socket 12 and clamped by the set screw 13. The insidediameterl of the outer end portion of the housing 52 is approximatelythe same as the diameter of the shaft 19 and terminates at a beveledshoulder 53 formed on said shaft 19. When the bar 22 is moved outwardlytoward the outer end of theH shaft 19, the outer edge of said bar 22contacts withthe inner periphery of the housing 52, with the result thatas the outer end portion 49 of the bar 22 moves outwardly it also movesinwardly, due to the relationship of the cams 50 and 51. Thus, when thebar 22 is' in its outermost position, the outer edge of the end portion49 of said bar is approximately even or flush with the peripheralsurface of the reduced outer end portion 54 of the shaft 19. But, whenthe bar 22 is retracted, its outer edge is moved outwardly beyond theperipheral surface of the shaft end 54, which operation is permitted bythe tapered arrangement of the housing 52.

The end portion 54 of the shaft 19 has serrations 55 and the Vouter edgeof the end portion 49 o'f the bar 22 has thereon similar serrations 56.

This form of the invention is constructed y,

58. The construction and arrangement of the machine is such that whenthe bar 22 is in its outward or ineffective position and has its outeredge approximately even with the adjacent peripheral surfaces of theshaft end 54, said shaft end 54 and bar end 49 may be inserted into thesocket 58. Then, when the treadle lever 46 is released, the spring 27acts immediately to move the sliding bar 22 longitudinally to its inwardposition, causing the cam parts 50 and 51 to move radially outward theend portion 49 of said bar 22. This outward radial movement Vof the endportion 49 causes said end portion 49 and the shaft end 54 to obtainlirm gripping engagement with the socket 58. Thus, the shoe last 57 willbe held rigidly in connection with this support and the shoe last willhold the shoe upper smooth, so that the shoe may be given the finishingoperations. The shaft 19' is freely rotative about its axis and willcarry with it the shoe last 57 and thereby the shoe, so that allportions of the shoe'may be brought to the position mostv convenient foroperation and treatment by the workman.

The devices shown onV Sheet 2 of the drawings comprise an expander forattachment to the machine above described for the purpose of treeing,and expanding and smoothing shoes having high uppers. In order to applyto the machine the expander for shoes having high uppers, it isnecessary only to remove the housing 52 and substitute therefor theexpander. The parts that are shown on Sheet 2 of the drawings, which arethe same as parts shown on Sheet 1 and are above described, have thesame reference numerals applied thereto on Sheet 2 as are applied onSheet 1.

After the housing 52 is removed a tubular element 59 is slipped onto theshaft 19 and insert-ed in t-he socket 12. The tube 59 has thereon acircumferential shoulder 60 abutting against the end of the socket 12and also has thereon a radial projection 61 which engages in a notch 62in the end of the socket 12 (Figs. 6 and 7). The set screw`13 is thentightened so as to engage the end portion of the tube 59 that i's withinthe socket 12 and thereby prevent. o-utward movement or withdrawal ofsaid tube 59.

An expander member 63is rigidly secured to the tube 59 and when saidtube is mounted on the shaft 19, in the position aforesaid, the outerend of the expander member 63 is apgin lli)

proximately even with the outer edge of the shoulder 53. This expandermember 63 is shaped properly to cooperate with the other expander memberso as to lexpand and smooth a high upper of the size for which theexpander is intended.

The cooperating expanding member 64'has in its inner end a notch 65. Asupport 66 is mounted in the notch and has sliding pivotal connectionwith the expander member G4. The slidingpivotal connection comprises apin 67 attached to the expander member 64 and extending through a slot68 inthe support 66.

A sleeve 69 is mounted forsliding movements on the tube 59 and hastherein a slot 70 which receives the inner end of thesupport 66. Theslot 7 0 is of sufficient length to permit the sleeve 69 to be movedlongitudinally along the tube 59 without interference by the support 66.l y

A bifurcated lever 7l has pivotal connection 72 with the support 66 andhas in the ends of its arms notches -73 for engagement with pins 74rigid with and projecting radially from opposite-sides of the sleeve 69.

A coiled spring 75 supported within the expander member 64 pressesagainst the member 76 mounted on a pivot 7 6a on the inner side of theexpander member 64. The member 76 has an outwardly bent 'end 77 adaptedto be engaged by av cam 7 Son the sleeve 69, when said sleeve 69 ismoved outwardly toward the end of the shaft 19 by operation of the lever7l.

The expander member64 is mounted on the device in position forcooperation with the expander member 63 by engaging the ends of thelevers 71 with the diametrically opposite pins 74. An elastic ring 79 isthen engaged around the members-63 and 64 and' holds said members intheV relationshipv shown in Fig. 6. In that'relationship the sleeve 69is againstthe shoulder-60. A lasted shoe having a high upper may then betreed on the machine. To tree the shoe on the machine the sliding bar 22is first moved outwardly to permit the socket 8O of the last 81 to beinserted upon the gripping device. Then the last is inserted upon thegripping device the treadle 46 is released.A Then the treadle 46 isreleased the 'spring 27 acts to cause the gripper to engage the socket8O and rigidly hold the last thereon. The high upper ofthe shoe encloseda portion of the expander members 63 and 64.' Av pairV of oppositeeyelets of the shoe upper are then engaged by hooks 82 connected withvone end of'a spring 83, the opposite end of which spring is connectedwith an arm `84 rigid with the expander member 63. The shoe upper isthen ystretched longitudinally onA the expander. Then the lever 7l isoperated to move the sleeve 69 outwardly along the tube 59, causing thecam 78 to rub against the inclined surface 77 and thereby spread-or movethe outer end of the expander member 64 which is enclosed within theshoe upper in a direction away from the expander member 63. This is inopposition to the springs 7 5-7 9 and also in opposition'to the spring83. In this Way the shoe upper is expanded and smoothed. All creasesvand wrinkles are removed so that the work and operation of finishingthe shoe upper is greatly facilitated.

A pin 85 constitutes an abutmentfor the cam 7 8 to limit outwardmovement of the expander member 64 when the sleeve 69 is against theabutment 60.

A highly improved feature of this machine is that construction wherebythe lasted shoe is supported upon the rotary support therefor in arelationship in which the rotary support rotates about a horizontal axisand in which the longitudinal axis of the shoe and the last isapproximately radial to the horizontal axis, as will be readilyunderstood by reference to Figs. l and 6. This permits the shoe to berotated about thehorizontal axis of the support while the longitudinalaxis of the lasted shoe remains approximately radial to said horizontalaxis.

Heretofore it has been the general practice, and has usually beennecessary, to remove the shoes from the original lasts for the finishingoperations. By my invention the necessityY ofy removing' the shoes fromthe original lasts is overcome and the finishing operations are morequickly and easily performed While the shoe remains on the originallast. Y

The foregoing description of the machine for use in finishing shoeshaving low uppers and in finishing shoes having high uppers includesadescription of the operation of saidy machine. The construction andarrangement of the parts comprising the invention may be widely variedwithout departure from the vnature and principle thereof. 'l contemplatesuch variation as may be found desirable and do not restrict myself inany unessential particulars. but what I claim and desire to secure byLetters Patent is l. A machine of the character described comprising ahollow support, a member rotativelyy supported by said support, a shaftrigid in said member, -a gripping device at the outer end of said shaftbeyond said member for engaging a shoe last, means enclosed in saidhollow support for operating said gripping device to gripping position,and means mounted in and kguided by said support for operating saidgripping deviceto ineffective position. l

2. A treeing ack comprising an `approximately horizontal rotary support,a shaft mounted rigidly in and having an end proliecting beyond the'outer end of said support for engaging in a last socket, a gripper in ashaft mounted rigidly in and having an end projecting beyond saidsupport for engaging in a last socket, a gripping device for engagingsaid shaft With the Wall of a last socket,

means for supporting-said gripping device for turning movements inconnection With said support, and means in connection With said supportfor expanding and stretching the shoe upper circumferentially after thelast has been completely engaged by said gripping device.

4. Atreeing jack comprising a gripping device for engaging ina socket inthe upper side of the heel portion of a, last in a shoe, automaticvmeans for operating said gripping device to gripping position, manualmeans for releasing said gripping device, means for supporting saidgripping device for turning movements about a horizontal axis, andresilient actuators for expanding and stretching the shoe upper bothlongitudinally and circumferentially.

5. A treeing jack comprising a gripping 'l device for engaging 1n asocket in the upper side of the heel portion `of a last in a shoe,automatic means for operating said gripping device to gripping position,manual means for releasing said gripping device, means for supportingsaid gripping device for turning movements about a horizontal axis,mechanism for operating said gripping device to engage and to releasethe last, and mechanism for expanding and stretching the shoe uppercircumferentially after the last has been completely engaged by saidgripping device.

6. A machine of the character described comprising a support, a grippingmember, means carried by said support `for supporting said grippingmember for turning movements and preventing longitudinal movements ofsaid gripping member, a cooperatinggripping member supported inconnection with said first gripping member, means enclosed 1 Jinsaid'support for moving said cooperating gripping member to grippingposition With respect to said first gripping member, in Whichpositionsaid tivo gripping members are adapted to grip against the Wallof a socket in a shoe last, and a lever extending into said support foroperating said means and thereby said gripping member to polsition torelease the shoe last. v

7. A machine of the character described comprising a support, a grippingmember,

means carried by said support for supporting said gripping member forturning movements and `preventing longitudinal movements of saidgripping member, a cooperating gripping member supported in connectionWith said first gripping member, means inclosed in said support formoving said Vcooperating gripping member to gripping position withrespect to said first gripping member, in which position said twogrippingl members are adapted to grip against the Wall of a socket in ashoe last, a lever extending into said support for operating said meansand thereby said grippingmember to position to release the shoe last,and mechanism for expanding and stretching a. shoe upper.

V8. A machine of the character ydescribed comprising a tubular support,a member extending into said support for rotary movements, a shaftattached to said member and projecting beyond the outer end thereof, agripping device at the outer end of said shaft for engaging andsupporting a shoe last, and a device in said tubular support foroperating said gripping device.

9. A machine of the character described comprising a tubular support, amember extending into said support for rotary movements,fa shaftattached to said member and projecting beyond the outer end thereof, agripping device at the outer end of said shaft for engaging and'supporting a shoe last, a device in said tubular support for operatingsaid gripping device to effective position, and mechanism for operatingsaid gripping device to ineffective position.

10. A machine of the character described comprising a tubular support, amember pro jectin'g into said support for rotary movements, a shaftattached to said member and extending into said tubular lsupport andprojecting outwardly beyond said member, a gripping device at the outerend of said shaft for engaging and supporting a shoe last, an actuatorenclosed Within said tubular port for actuating said gripping device togripping position and permitting movement of said gripping device toreleased position, a lever, mechanism for operating said lever,

and means operated by said lever for moving said gripping device toreleased position. l1. A machine of the character described comprisinga'holloW support, a rotary member carried by said support, a grippingdevice supported by said rota-ry member for engaging and supporting ashoe last, an actuator enclosed in said support for actuating saidgripping device to gripping position and permitting movement of saidgripping devices to released position, and mechanism for operating saidgripping device to released position in opposition to said actuator.

,12.` A machine of the character described comprisinga rigid verticalsupport, a separat-e horizontal support, meansfor holding saidhorizontal support rigid with the upper end of said vertical support inselected vertical and laterally extended positions, and mechanismcarried by said horizontal sup.- port for engaging the last in a lastedshoe and supporting the lasted shoe for rotation about a horizontal axisin a position in which the longitudinal axis of the shoe isapproximately radial to said horizontal axis.

13. A machine of the character described comprising a hollow support, anadditional support carried by said hollow support for rotation about ahorizontal axis, a gripping element carried by said additional supportfor engaging the last of a lasted shoe and supporting the lasted shoefor rotation about a horizontal axis in a relationship in which thelongitudinal axis of the shoe is approximately radial to said horizontalaxis, a second gripping element cooperating with said first grippingelement for engaging and holding the last in connection therewith, meansfor operating said second gripping element to engage and to release thelast, and mechanism for expanding and stretching circumferentially andlongitudinally the shoe upper.

14. A machine of the character described comprising mechanismcooperating with the original last on which a shoe is lasted and whilethe shoe is on the last for supporting the shoe for rotation in a planein which the longitudinal axis of the shoe is approximately radial tothe horizontal axis about which the shoe is rotated, a device forstretching the shoe upper longitudinally, and manually operative meansfor expanding the shoe upper circumferentially after the last has beenconnected with said mechanism.

15. An expander for a shoe upper comprising resilient means forstretching the shoe upper longitudinally, and a manually operativedevice for expanding the shoe upper circumferentially. y

16. A treeing jack for treeing shoes for iinishing operations comprisinga support for supporting a last on which the shoe is mounted, a pair ofexpander members, resilient means for moving one of said expandermembers in a direction away from the other to expand the shoe upper, anda manual device `for causing said resilient means to move said expandermember as aforesaid. A

17. A machine of the character described comprising a. rotary supportfor a Shoe, an expander member rigid with said support and arranged toextend into the shoe upper, a cooperating expander member pivotallycarried by said support and arranged toextendV into the shoe upper,resilient means for moving said cooperating expander member away fromsaid first expander member to expand the shoe upper, and means forcausing saidr resilient means to operate.

18. A machine of the character described lies-6271?;

comprising a stationary support, a'rotary support extending into andsupported by said stationary support, cooperating gripping elementssupported by and projecting beyond the end of said rotary support forengaging the original last on which a shoe is lasted to support the shoefor rotation in a planev in which the longitudinal axis of the shoe isapproximately radial to the axis about which the shoe is rotated, aresilient actuator enclosed Within said stationary support for holdingsaid gripping elements in eective position and permitting movement ofsaid gripping elements to ineffective position, a bell crank lever,means for pivotally supporting said bell crank lever in position inwhich one arm extends into said stationary support and the other armextends out of said stationary support, means operative by said bellcrank lever for moving one of said gripping elements to ineffectiveposition with respect to the other gripping element, and means foroperating said bell crank lever.

19. A machine of the character described comprising a stationarysupport, a rotary support extending into and supported by saidstationary support, cooperating gripping elements supported by andprojecting beyond the end of said rotary support for engaging theoriginal last on which a shoe is lasted to support the shoe for rotationin a plane in which the longitudinal axis of the shoe is approximatelyradial to the axis about which the shoe is rotated, a resilient actuatorenclosed Ywithin said stationary support for holding said grippingelements in effective position and permitting movement of said grippingelements to ineffective position, a bell crank lever, means forpivotally supporting said bell crank lever in position in which onearmyextends into said stationary support and the other arm extends out ofsaid stationary support, means operative by said bell crank lever formoving one of said gripping elements to ineffective position withrespect to the other gripping element, means for operating said bellcrank lever, a releasable member holding said rotary support inconnection with said stationary support, and means for releasing saidmember from said rotary support.

. 20. A machine of the character described comprising. a stationarysupport, a rotary supportk carried by said stationary support, a shaftfor one end mounted in said rotary support and having the opposite endadapted to 'engage a shoe last, a gripping member in said shaft andcooperating with said last named end of said shaft to obtain grippingengagement with the shoe last, a sleeve enclosing a portion of saidshaft beyond said rotary support, detachable means holding said sleevein connection with said rotary support and terminating out of engagementwith a last engaged by said gripping element,

21. A machine of the character described comprising a stationarysupport, a rotary support carried by and having one end projectingbeyond said stationary support to engage in a socket in a shoe last, agripping member extending along said rotary supportV and arranged toextend into the socket in the shoe last and cooperate with said end ofsaid rotary support to support the shoe last, a lever for moving saidgripping member to position for extension into the socket, automaticmeans operating after release of said lever to move said gripping deviceto engage the socket of the shoe last and hold the shoe last on saidrotary support, expanding devices, a support for said expanding devices,and detachable means for securing said last named support in connectionWith said rotary support.

JAMES D. KRIVE.

